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. 2022 May 13;12(5):333. doi: 10.3390/bios12050333

Figure 3.

Figure 3

(a) Sensitivity of materials made of 240 μM or 480 μM (HPTS)/(TOA)4 in PPMA with the addition of 0%, 5%, 10%, 20%, and 40% (v/v) methanolic solution of TOAOH. (b) Photostability comparison of sensing films prepared from 240 μM (HPTS)/(TOA)4 in PPMA containing 5%, 10%, and 20% (v/v) TOAOH solution and 480 μM (HPTS)/(TOA)4 in PPMA with 20% (v/v) TOAOH solution under the air condition. (c) Moisture sensitivity of the material prepared from 240 μM (HPTS)/(TOA)4 in PPMA with 10% (v/v) TOAOH solution under CO2 and N2 conditions.